Switchboard mechanism



H. F. KRANTZ. SWITCHBOARD MECHANISM. APPLICATION FILED AUG-5, 1918.

Patented Oct. 24; 1922.

Patented Oct. 24, 1922.

UNITED STATES PATENT OFFICE.

manner. xnmmz, or BBDOKLYN, NEW YORK, ASSIGNOR T0 KRANTZ MANUFACTUnnm comm, me, on BROOKLYN, NEW YORK, A CORPORATION or NEW YORK.

SWITG HBOABD MECHANISM.

Application filed August 5, 1918.

To allwhom. it may concern:

Be it known that I, Hnnnnr F. KnAn'rz, residing at Brooklyn, inthe county of Kings and State of, New York. have invented certain new. and useful Improvements in a Switchboard Mechanism, of which the following is 1 a specification.

This invention relates to a switch board mechanism,

An object of the invention is to pIOVldQ. an improved arrangement of parts adapted for usefparticularly in connection with. heavy currents.

further object, is to provide an 1mproved arrangement of parts whereby to aiford substantial supporting means for the switch blades.

Other objects. and; aims of the invention, more or less specific than those referred to above, will be in part obvious and in part pointed, out in the. course of the following escription of the elements, combinations,

arrangements ofparts and applications, of-

tinciples, constitntingv the inventions and the scope of, protection contem lated will be indicated in the appended: claims.

In the accompanying drawings which are to, be. taken as a part of; this specification, and which I haveshown merely a preferred form of embodiment of the invention: p

I l is a diagrammatic plan view illustratin a. device constructed in accordance with t isinvention.

Fi {2 is a diagrammatic v ew show n 1n e levation the structure. disclosed in 1g. 1 and illustrating the same as including a casing or the like in which the parts may be contained.

Fi 3 is a, diagrammatic View, ShO3Y1I1, I 1Ii side eyationthe structure disclosed in Fig. l and, illustrating thev same as it appears arra ged for use in a dead face switch w Fig. 4: isa diagrammatic view somewhat to that shown in Fig. 1 illustrating dification.

is a diagrammatic view showing, n elevation, the. structure suggested in 6. is, a diagrammafiilclz viewv similar, to that fiiown in Fig.3. buti strating the type of; switch mechanism shown in Figs. 4i and Serial No. 248,329

Fig. 7 is a diagrammatic view similar to that shown in Fig. l but illustrating a further modification. i

Referring to the drawings for describing the structure which is illustrated therein, and referring first to the illustrations Fi s. 1 and 2, the reference characters 1, and 3 indicate the main line contacts, and the ref erence characters 4, 5 and 6 indicate the branch line contacts. The contacts 4, 5 and 6 are in alignment with and form pairs with the contacts 1, 2 and 3 respectively as is a well known practice dealing with 3-wire systems. All of the contacts are preferably car ried fiat upon the face of a base plate as L, the main line contacts being suitably spaced from, the branch line cont-acts, and the airs being properly spacedapart substantial y as indicated.

Three switch blades as 7, 8 and 9am provided for bi'id ing the gap between the main and branch ine contacts. These switch blades are supported in a common carrier G, being insulated from each other and from the carrier b suitable insulation pieces 10. The carrier J is fixed to a U-shaped frame 11, the legs of which are spaced apart and are pivotally supported in a pair of brackets 12.

The brackets 12 are positioned in the spaces between the pairs of contacts, and the frame L brid es rigidly over the middle pair of contacts from one bracket to the other so that the three switch blades are provided with an unusually strong and substantial support.

A spring or the like, as 13, may be provided for urging the frame and switch blades away from the contacts.

The reference character H indicates an operating handle. It is pivotally supported, as at 14, in a suitable bracket carried preferably by the front wall as 16 of an enclosing casing 17, and is adapted to operate a toggle 18 in a manner fully shown and described in my copending application Serial N 42,95 filed July 31, 1.915. Upward movement of the handle will straighten the toggle and swin the frame, 11 to brin the opposite endsof the switch blades against the respective contacts, while downward movement of the handle breaks the tog is and. allows the spring 13 to snap thebla es away from the contacts.

Suitable iuses or the like, as 19, may, of course, be pI'GVlClB'C. in association. with the branch line contacts.

in the modification Fig. 3 the parts are substant "y as above shown and described except that the operating handle, as 20, is arranged at the front face of the base board 21 and is connected with the carrierG through the aperture in the base board by means ot' a linlr this being the appropriate arran ement for providing a lead o ital re switch board.

.ln then'iodilir on Figs. 4 and 5 the main line contacts are in the torn] of bus bars 24;,55 and spaced apart in substantially 'ailel relation and extending along one ace of asuitable base board 27. .The swi ch blades as 28, 3O employed this "ance are similar to those shown and dos bed in my copending application above mentioned, that is, they are double ended and are pivotally mounted intermediate their. ends, as at 31, for swinging their opposite ends into and. out of engagement with the bus bars and with junta-posed separate branch line contacts 32, and 34 which :torin pairs with the bus bars.

in; switch blades are supported in a corn- ;non carrier 35 and the supporting pivot 31 provided between this c2""ri.er and a pair of independent supporting brackets 36 arr2) ed one between the bus bars 24 and 25 an the other between the busbars 25 and .e supporting brackets 36 are fixed to the base board 27 substantially inid-way between the bus bars and constitute a strong and substantial support for the carrier.

The operating handle, as 37 issimilar to what has already been described-with reference to Figs. 1 and 2, the toggle being connected with'the carrier 35, as at 39, so as to swing the switch blades against the bus bars and branch line contacts by straightennip; of the toggle.

course there may be. any number of carriers and associated parts arranged spaced apart along; the lengtho'f the bus bars.

in the modification Fig. 6 the structure is the same in all respects as that described with reference to Figs. 4 and 5 except as to the position and manner of connecting and operating the toggle. In Fig. 6 the toggle is arranged to be operated by a link 40 which extends through an aperture-41 formed in a.

base board 42, the link being connected with a laterally extending arm 43 of an operating handle 4 the front face of the board. This arrangement is adapted for use in conneotion with. dead t'ace switch boards.

In the modification F 7, the structure is similar to that shown in Figs. 4and 5. In this modification, howevenfthe carrier is divided into sections 45, 46 and 47 each section being adapted to carry one of the blades 28', and 30 respectively. The sections are i11- 46 and 47 may include toggles similar to that,

described with reference to FigsA'and 5, there being one disposed and connected be: tween the sections 45 and 46, and another between the sections 46 and47.l Eachof these has an operating lever as 54 associated.v therewith, and these two levers are prefer-- ably connected by a hand grip member 55 by which they may be simultaneously operated to swing all of the sections and blades in unison.

It will be apparent, from what has been shown and described, that the hand grip member for operating the structure Fi may be disposed for operation from either side of abase board. i Y M With switches, as herein shown and described, it will be possible andthoroughly practical to use switch blades and cooperative parts of unusually heavy construction. As many changescould be made in this' construction without departing from" the scope orthe invention as defined in the fol lowing claims, it 1S intended that all matter contained in the above description or shown 100 in the accompanying drawings, shall be intcrpreted as illustrative only and notin a limiting sense.

Having thus described my invention,

what I claim as new and desire to secure by Letters Patent is l. A switch mechanism comprising three pairs of contacts spaced apart, three switchv blades one for each pair of contacts, ,a'carrier for said switch blades, Inea-ns'to 10pcrate the carrier to move the switch blades into on and of? positions, andHapair of supports for .said carrier disposed in the spaces between adjacent pairs of, contacts and out ofline therewith. 2. A switch mechanism comprisingaplurality of pairs of contacts, said pairsbein'g spaced apart a plurality of switch blades one for each pair of contacts, a carrier for, said switch blades, means to operate the ear rier to move the switchblades into on and cit positions, and supporting means for the carrier positioned between adjacent pairs of contacts and out of line therewith.

3. A switch mechanism comprisingthree bus bars spaced apart, three switch blades for deriving current from saidrbusba rs, a carrier for said switch blades, means to operate the switch blades into on and foil? positions, and two separate supports for said carrier arranged within the spaces between the adjacent bus bars and out of line therewith.

4. A switch mechanism comprising a base board, three bus bars supported at one face of said base board spaced apart in substantially parallel relation, three branch line contacts forming pairs with the bus bars respectively, three switch blades one for each of said pairs, means to operate the switch blades to close connection between the bus bars and the respective branch line contacts, and two separate supports for the switch blades, said supports being arranged in the spaces between adjacent pairs and out of line therewith.

5. A switch mechanism comprising three pairs of contacts spaced apart, three switch blades one for each pair of contacts, a carrier for said switch blades, said carrier be in made up of three sections one for each swltch' blade, means to operate the sections to move the switch blades into on and off positions, and a pair of supports for said carrier disposed in the spaces between the pairs of contacts and out of line therewith and being connected with the carrier between the sections thereof.

6. A switch mechanism comprisingthree pairs of contacts spaced apart, three switch blades one for each pair of contacts, a carrier for said switch blades, said carrier being made up of three sections one for each switch blade, a pair of supports for said carrier disposed in the spaces between adj acent pairs of contacts and out of line therewith and being connected with the carrier between the sections thereof, and operating means for the carrier comprising a pair of levers operatively connected with the carrier between the sections thereof, and a hand grip extending between and connected to said levers for simultaneously operating the switch blades.

7. A switch mechanism comprising a plurality of pairs of contacts, said pairs being spaced apart, a plurality of switch blades one for each pair of cont-acts, a carrier for said switch blades, said carrier being made up of sections one for each switch blade, means to operate the carrier to move the switch blades into on and off positions, and supporting means for the carrier positioned between adjacent pairs and out of line therewith and engaging the carrier between the sections thereof.

8. A switch mechanism comprising three conductors arranged in parallelplanes and having portions thereof separated to interrupt acircuit therethrough, a separate movable switch member for conductively connecting the portions of each conductor, a carrier for the said switch members adapted to move the said switch members to closed or open position and supports for the carrier disposed in the space between the planes of the conductors and out of line therewith.

In testimony, whereof I aflix my signature in the presence of two witnesses.

HUBERT F. KRANTZ.

Witnesses EDITH Ross, WM. WERNER. 

